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1.
一类不连续系统关于闭不变集的有限时间稳定性研究 总被引:1,自引:0,他引:1
主要研究右端不连续系统在Filippov解意义下关于闭不变集(未必是紧集)的有限时间稳定问题.当Liapunov函数是Lipschitz连续的正则函数情况下,给出了相关的Liapunov稳定性定理. 相似文献
2.
泛函微分方程的Lipschitz指数稳定性 总被引:4,自引:0,他引:4
提出泛函微分方程的Lipschitz指数稳定性概念,给出了利用Liapunov泛函数研究Lipschitz指数稳定性的条件。 相似文献
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一类非自治系统的稳定性 总被引:3,自引:0,他引:3
骆桦 《数学的实践与认识》2005,35(2):169-171
通过构造 Liapunov函数给出了一类非自治系统的稳定性的判定准则 .并给出了其有关的应用实例 相似文献
4.
Marachkov-Barbashin-Krasovskii型渐近稳定性定理 总被引:1,自引:0,他引:1
本文研究非自治系统的渐近稳定性.且得到了不要求Liapunov函数正定,也不要求其沿系统的解的导数负定的渐近稳定性定理.一致渐近稳定性定理及全局渐近稳定性定理. 相似文献
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本文讨论了离散系统对部分变元的集合稳定性。分别用标量Liapunov函数法和向量Liapunov函数法,给出了离散大系统对部分变元的集合稳定性的充分条件。考虑系统: 相似文献
6.
离散大系统对部分变元的集合稳定性 总被引:1,自引:0,他引:1
本文讨论了离散系统对部分变元的集合稳定性。分别用标量Liapunov函数法和向量Liapunov函数法,给出了离散大系统对部分变元的集合稳定性的充分条件。考虑系统: 相似文献
7.
Liapunov稳定性定理的推广 总被引:2,自引:0,他引:2
本文利用多个Liapunov函数研究部分变元的方法,对自治系统和非自治系统建立了解的稳定性判别准则,推广了有关文献的若干结果. 相似文献
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具有扩散影响的Hopfield型神经网络的全局渐近稳定性 总被引:1,自引:0,他引:1
对具有扩散影响的Hopfield型神经网络平衡点的存在唯一性和全局渐近稳定性进行了研究.在激活函数单调非减、可微且关联矩阵和Liapunov对角稳定矩阵有关时,利用拓扑度理论得到了系统平衡点存在的充分条件.通过构造适当的平均Liapunov函数,分析了系统平衡点的全局渐近稳定性.所得结论表明系统的平衡点(如果存在)是全局渐近稳定的而且也蕴含着系统的平衡点的唯一性. 相似文献
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In this paper, we develop dissipativity notions for dynamical systems with discontinuous vector fields. Specifically, we consider dynamical systems with Lebesgue measurable and locally essentially bounded vector fields characterized by differential inclusions involving Filippov set-valued maps specifying a set of directions for the system velocity and admitting Filippov solutions with absolutely continuous curves. In particular, we introduce a generalized definition of dissipativity for discontinuous dynamical systems in terms of set-valued supply rate maps and set-valued storage maps consisting of locally Lebesgue integrable supply rates and Lipschitz continuous storage functions, respectively. In addition, we introduce the notion of a set-valued available storage map and a set-valued required supply map, and show that if these maps have closed convex images they specialize to single-valued maps corresponding to the smallest available storage and the largest required supply of the differential inclusion, respectively. Furthermore, we show that all system storage functions are bounded from above by the largest required supply and bounded from below by the smallest available storage, and hence, a dissipative differential inclusion can deliver to its surroundings only a fraction of its generalized stored energy and can store only a fraction of the generalized work done to it. Moreover, extended Kalman–Yakubovich–Popov conditions, in terms of the discontinuous system dynamics, characterizing dissipativity via generalized Clarke gradients and locally Lipschitz continuous storage functions are derived. Finally, these results are then used to develop feedback interconnection stability results for discontinuous systems thereby providing a generalization of the small gain and positivity theorems to systems with discontinuous vector fields. 相似文献
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In this paper, we develop dissipativity theory for discontinuous dynamical systems. Specifically, using set-valued supply rate maps and set-valued connective supply rate maps consisting of locally Lebesgue integrable supply rates and connective supply rates, respectively, and set-valued storage maps consisting of piecewise continuous storage functions, dissipativity properties for discontinuous dynamical systems are presented. Furthermore, extended Kalman–Yakubovich–Popov set-valued conditions, in terms of the discontinuous system dynamics, characterizing dissipativity via generalized Clarke gradients and locally Lipschitz continuous storage functions are derived. Finally, these results are used to develop feedback interconnection stability results for discontinuous dynamical systems by appropriately combining the set-valued storage maps for the forward and feedback systems. 相似文献
13.
Pavel Krejci 《Applications of Mathematics》2001,46(1):1-11
It is known that the vector stop operator with a convex closed characteristic Z of class C
1 is locally Lipschitz continuous in the space of absolutely continuous functions if the unit outward normal mapping n is Lipschitz continuous on the boundary Z of Z. We prove that in the regular case, this condition is also necessary. 相似文献
14.
An extension of the invariance principle for a class of discontinuous righthand sides systems with parameter variation in the Filippov sense is proposed. This extension allows the derivative of an auxiliary function V, also called a Lyapunov-like function, along the solutions of the discontinuous system to be positive on some sets. The uniform estimates of attractors and basin of attractions with respect to parameters are also obtained. To this end, we use locally Lipschitz continuous and regular Lyapunov functions, as well as Filippov theory. The obtained results settled in the general context of differential inclusions, and through a uniform version of the LaSalle invariance principle. An illustrative example shows the potential of the theoretical results in providing information on the asymptotic behavior of discontinuous systems. 相似文献
15.
A. Bacciotti 《Journal of Mathematical Analysis and Applications》2002,270(2):488-498
We consider a time-invariant, finite-dimensional system of ordinary differential equations, whose right-hand side is continuous, but not Lipschitz continuous in general. For such a system, stability cannot be characterized in general by means of smooth Liapunov functions. We prove a new version of the converse of first Liapunov theorem. We give also some new conditions which allow us to verify, in different circumstances, whether a nonsmooth function is monotone along the solutions of the system. 相似文献
16.
Stability properties of the solution set of generalized inequality systems with locally Lipschitz functions are obtained under a regularity condition on the generalized Jacobian and the Clarke tangent cone. From these results, we derive sufficient conditions for the optimal value function in a nonsmooth optimization problem to be continuous or locally Lipschitz at a given parameter. 相似文献
17.
Kazimierz Malanowski 《Applied Mathematics and Optimization》1987,16(1):73-91
We consider a family of optimal control problems for systems described by nonlinear ordinary differential equations with control appearing linearly. The cost functionals and the control constraints are convex. All data depend on a vector parameter.Using the concept of the second-order sufficient optimality conditions it is shown that the solutions of the problems, as well as the associated Lagrange multipliers, are locally Lipschitz continuous and directionally differentiable functions of the parameter. 相似文献
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Deformation in locally convex topological linear spaces 总被引:1,自引:0,他引:1
DING YanhengInstitute of Mathematics Academy of Mathematics Systems Science Chinese Academy of Sciences Beijing China 《中国科学A辑(英文版)》2004,47(5):687-710
We are concerned with a deformation theory in locally convex topological linear spaces. A special "nice" partition of unity is given. This enables us to construct certain vector fields which are locally Lipschitz continuous with respect to the locally convex topology. The existence, uniqueness and continuous dependence of flows associated to the vector fields are established. Deformations related to strongly indefinite functionals are then obtained. Finally, as applications, we prove some abstract critical point theorems. 相似文献
19.
Kazimierz Malanowski 《Applied Mathematics and Optimization》1990,21(1):1-20
A family of optimization problems in a Hilbert space depending on a vector parameter is considered. It is assumed that the problems have locally isolated local solutions. Both these solutions and the associated Lagrange multipliers are assumed to be locally Lipschitz continuous functions of the parameter. Moreover, the assumption of the type of strong second-order sufficient condition is satisfied.It is shown that the solutions are directionally differentiable functions of the parameter and the directional derivative is characterized. A second-order expansion of the optimal-value function is obtained. The abstract results are applied to state and control constrained optimal control problems for systems described by nonlinear ordinary differential equations with the control appearing linearly. 相似文献
20.
Dinh The Luc 《Journal of Mathematical Analysis and Applications》2002,268(2):629-646
We introduce the concept of Fréchet approximate Jacobian matrices for continuous vector functions and use it to establish some sufficient criteria for the local uniqueness of solutions to a variational inequality problem involving continuous, not necessarily locally Lipschitz functions. Examples are also given to illustrate the usefulness of our approach. 相似文献